| 1 |
#!/bin/sh |
| 2 |
# configure script for zlib. |
| 3 |
# |
| 4 |
# Normally configure builds both a static and a shared library. |
| 5 |
# If you want to build just a static library, use: ./configure --static |
| 6 |
# |
| 7 |
# To impose specific compiler or flags or install directory, use for example: |
| 8 |
# prefix=$HOME CC=cc CFLAGS="-O4" ./configure |
| 9 |
# or for csh/tcsh users: |
| 10 |
# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) |
| 11 |
|
| 12 |
# Incorrect settings of CC or CFLAGS may prevent creating a shared library. |
| 13 |
# If you have problems, try without defining CC and CFLAGS before reporting |
| 14 |
# an error. |
| 15 |
|
| 16 |
# start off configure.log |
| 17 |
echo -------------------- >> configure.log |
| 18 |
echo $0 $* >> configure.log |
| 19 |
date >> configure.log |
| 20 |
|
| 21 |
# set command prefix for cross-compilation |
| 22 |
if [ -n "${CHOST}" ]; then |
| 23 |
uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`" |
| 24 |
CROSS_PREFIX="${CHOST}-" |
| 25 |
fi |
| 26 |
|
| 27 |
# destination name for static library |
| 28 |
STATICLIB=libz.a |
| 29 |
|
| 30 |
# extract zlib version numbers from zlib.h |
| 31 |
VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` |
| 32 |
VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` |
| 33 |
VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` |
| 34 |
VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` |
| 35 |
|
| 36 |
# establish commands for library building |
| 37 |
if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
| 38 |
AR=${AR-"${CROSS_PREFIX}ar"} |
| 39 |
test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
| 40 |
else |
| 41 |
AR=${AR-"ar"} |
| 42 |
test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
| 43 |
fi |
| 44 |
ARFLAGS=${ARFLAGS-"rc"} |
| 45 |
if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
| 46 |
RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} |
| 47 |
test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log |
| 48 |
else |
| 49 |
RANLIB=${RANLIB-"ranlib"} |
| 50 |
fi |
| 51 |
if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
| 52 |
NM=${NM-"${CROSS_PREFIX}nm"} |
| 53 |
test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log |
| 54 |
else |
| 55 |
NM=${NM-"nm"} |
| 56 |
fi |
| 57 |
|
| 58 |
# set defaults before processing command line options |
| 59 |
LDCONFIG=${LDCONFIG-"ldconfig"} |
| 60 |
LDSHAREDLIBC="${LDSHAREDLIBC--lc}" |
| 61 |
ARCHS= |
| 62 |
prefix=${prefix-/usr/local} |
| 63 |
exec_prefix=${exec_prefix-'${prefix}'} |
| 64 |
libdir=${libdir-'${exec_prefix}/lib'} |
| 65 |
sharedlibdir=${sharedlibdir-'${libdir}'} |
| 66 |
includedir=${includedir-'${prefix}/include'} |
| 67 |
mandir=${mandir-'${prefix}/share/man'} |
| 68 |
shared_ext='.so' |
| 69 |
shared=1 |
| 70 |
solo=0 |
| 71 |
cover=0 |
| 72 |
zprefix=0 |
| 73 |
zconst=0 |
| 74 |
build64=0 |
| 75 |
gcc=0 |
| 76 |
old_cc="$CC" |
| 77 |
old_cflags="$CFLAGS" |
| 78 |
OBJC='$(OBJZ) $(OBJG)' |
| 79 |
PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)' |
| 80 |
|
| 81 |
# leave this script, optionally in a bad way |
| 82 |
leave() |
| 83 |
{ |
| 84 |
if test "$*" != "0"; then |
| 85 |
echo "** $0 aborting." | tee -a configure.log |
| 86 |
fi |
| 87 |
rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version |
| 88 |
echo -------------------- >> configure.log |
| 89 |
echo >> configure.log |
| 90 |
echo >> configure.log |
| 91 |
exit $1 |
| 92 |
} |
| 93 |
|
| 94 |
# process command line options |
| 95 |
while test $# -ge 1 |
| 96 |
do |
| 97 |
case "$1" in |
| 98 |
-h* | --help) |
| 99 |
echo 'usage:' | tee -a configure.log |
| 100 |
echo ' configure [--const] [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log |
| 101 |
echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log |
| 102 |
echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log |
| 103 |
exit 0 ;; |
| 104 |
-p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;; |
| 105 |
-e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;; |
| 106 |
-l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;; |
| 107 |
--sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; |
| 108 |
-i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; |
| 109 |
-u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; |
| 110 |
-p* | --prefix) prefix="$2"; shift; shift ;; |
| 111 |
-e* | --eprefix) exec_prefix="$2"; shift; shift ;; |
| 112 |
-l* | --libdir) libdir="$2"; shift; shift ;; |
| 113 |
-i* | --includedir) includedir="$2"; shift; shift ;; |
| 114 |
-s* | --shared | --enable-shared) shared=1; shift ;; |
| 115 |
-t | --static) shared=0; shift ;; |
| 116 |
--solo) solo=1; shift ;; |
| 117 |
--cover) cover=1; shift ;; |
| 118 |
-z* | --zprefix) zprefix=1; shift ;; |
| 119 |
-6* | --64) build64=1; shift ;; |
| 120 |
-a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;; |
| 121 |
--sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;; |
| 122 |
--localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;; |
| 123 |
-c* | --const) zconst=1; shift ;; |
| 124 |
*) |
| 125 |
echo "unknown option: $1" | tee -a configure.log |
| 126 |
echo "$0 --help for help" | tee -a configure.log |
| 127 |
leave 1;; |
| 128 |
esac |
| 129 |
done |
| 130 |
|
| 131 |
# temporary file name |
| 132 |
test=ztest$$ |
| 133 |
|
| 134 |
# put arguments in log, also put test file in log if used in arguments |
| 135 |
show() |
| 136 |
{ |
| 137 |
case "$*" in |
| 138 |
*$test.c*) |
| 139 |
echo === $test.c === >> configure.log |
| 140 |
cat $test.c >> configure.log |
| 141 |
echo === >> configure.log;; |
| 142 |
esac |
| 143 |
echo $* >> configure.log |
| 144 |
} |
| 145 |
|
| 146 |
# check for gcc vs. cc and set compile and link flags based on the system identified by uname |
| 147 |
cat > $test.c <<EOF |
| 148 |
extern int getchar(); |
| 149 |
int hello() {return getchar();} |
| 150 |
EOF |
| 151 |
|
| 152 |
test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log |
| 153 |
cc=${CC-${CROSS_PREFIX}gcc} |
| 154 |
cflags=${CFLAGS-"-O3"} |
| 155 |
# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure |
| 156 |
case "$cc" in |
| 157 |
*gcc*) gcc=1 ;; |
| 158 |
*clang*) gcc=1 ;; |
| 159 |
esac |
| 160 |
case `$cc -v 2>&1` in |
| 161 |
*gcc*) gcc=1 ;; |
| 162 |
esac |
| 163 |
|
| 164 |
show $cc -c $test.c |
| 165 |
if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then |
| 166 |
echo ... using gcc >> configure.log |
| 167 |
CC="$cc" |
| 168 |
CFLAGS="${CFLAGS--O3} ${ARCHS}" |
| 169 |
SFLAGS="${CFLAGS--O3} -fPIC" |
| 170 |
LDFLAGS="${LDFLAGS} ${ARCHS}" |
| 171 |
if test $build64 -eq 1; then |
| 172 |
CFLAGS="${CFLAGS} -m64" |
| 173 |
SFLAGS="${SFLAGS} -m64" |
| 174 |
fi |
| 175 |
if test "${ZLIBGCCWARN}" = "YES"; then |
| 176 |
if test "$zconst" -eq 1; then |
| 177 |
CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST" |
| 178 |
else |
| 179 |
CFLAGS="${CFLAGS} -Wall -Wextra -pedantic" |
| 180 |
fi |
| 181 |
fi |
| 182 |
if test -z "$uname"; then |
| 183 |
uname=`(uname -s || echo unknown) 2>/dev/null` |
| 184 |
fi |
| 185 |
case "$uname" in |
| 186 |
Linux* | linux* | GNU | GNU/* | solaris*) |
| 187 |
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; |
| 188 |
*BSD | *bsd* | DragonFly) |
| 189 |
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} |
| 190 |
LDCONFIG="ldconfig -m" ;; |
| 191 |
CYGWIN* | Cygwin* | cygwin* | OS/2*) |
| 192 |
EXE='.exe' ;; |
| 193 |
MINGW* | mingw*) |
| 194 |
# temporary bypass |
| 195 |
rm -f $test.[co] $test $test$shared_ext |
| 196 |
echo "Please use win32/Makefile.gcc instead." | tee -a configure.log |
| 197 |
leave 1 |
| 198 |
LDSHARED=${LDSHARED-"$cc -shared"} |
| 199 |
LDSHAREDLIBC="" |
| 200 |
EXE='.exe' ;; |
| 201 |
QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 |
| 202 |
# (alain.bonnefoy@icbt.com) |
| 203 |
LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; |
| 204 |
HP-UX*) |
| 205 |
LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} |
| 206 |
case `(uname -m || echo unknown) 2>/dev/null` in |
| 207 |
ia64) |
| 208 |
shared_ext='.so' |
| 209 |
SHAREDLIB='libz.so' ;; |
| 210 |
*) |
| 211 |
shared_ext='.sl' |
| 212 |
SHAREDLIB='libz.sl' ;; |
| 213 |
esac ;; |
| 214 |
Darwin* | darwin*) |
| 215 |
shared_ext='.dylib' |
| 216 |
SHAREDLIB=libz$shared_ext |
| 217 |
SHAREDLIBV=libz.$VER$shared_ext |
| 218 |
SHAREDLIBM=libz.$VER1$shared_ext |
| 219 |
LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} |
| 220 |
if libtool -V 2>&1 | grep Apple > /dev/null; then |
| 221 |
AR="libtool" |
| 222 |
else |
| 223 |
AR="/usr/bin/libtool" |
| 224 |
fi |
| 225 |
ARFLAGS="-o" ;; |
| 226 |
*) LDSHARED=${LDSHARED-"$cc -shared"} ;; |
| 227 |
esac |
| 228 |
else |
| 229 |
# find system name and corresponding cc options |
| 230 |
CC=${CC-cc} |
| 231 |
gcc=0 |
| 232 |
echo ... using $CC >> configure.log |
| 233 |
if test -z "$uname"; then |
| 234 |
uname=`(uname -sr || echo unknown) 2>/dev/null` |
| 235 |
fi |
| 236 |
case "$uname" in |
| 237 |
HP-UX*) SFLAGS=${CFLAGS-"-O +z"} |
| 238 |
CFLAGS=${CFLAGS-"-O"} |
| 239 |
# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} |
| 240 |
LDSHARED=${LDSHARED-"ld -b"} |
| 241 |
case `(uname -m || echo unknown) 2>/dev/null` in |
| 242 |
ia64) |
| 243 |
shared_ext='.so' |
| 244 |
SHAREDLIB='libz.so' ;; |
| 245 |
*) |
| 246 |
shared_ext='.sl' |
| 247 |
SHAREDLIB='libz.sl' ;; |
| 248 |
esac ;; |
| 249 |
IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} |
| 250 |
CFLAGS=${CFLAGS-"-ansi -O2"} |
| 251 |
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
| 252 |
OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} |
| 253 |
CFLAGS=${CFLAGS-"-O -std1"} |
| 254 |
LDFLAGS="${LDFLAGS} -Wl,-rpath,." |
| 255 |
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; |
| 256 |
OSF1*) SFLAGS=${CFLAGS-"-O -std1"} |
| 257 |
CFLAGS=${CFLAGS-"-O -std1"} |
| 258 |
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
| 259 |
QNX*) SFLAGS=${CFLAGS-"-4 -O"} |
| 260 |
CFLAGS=${CFLAGS-"-4 -O"} |
| 261 |
LDSHARED=${LDSHARED-"cc"} |
| 262 |
RANLIB=${RANLIB-"true"} |
| 263 |
AR="cc" |
| 264 |
ARFLAGS="-A" ;; |
| 265 |
SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} |
| 266 |
CFLAGS=${CFLAGS-"-O3"} |
| 267 |
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; |
| 268 |
SunOS\ 5* | solaris*) |
| 269 |
LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"} |
| 270 |
SFLAGS=${CFLAGS-"-fast -KPIC"} |
| 271 |
CFLAGS=${CFLAGS-"-fast"} |
| 272 |
if test $build64 -eq 1; then |
| 273 |
# old versions of SunPRO/Workshop/Studio don't support -m64, |
| 274 |
# but newer ones do. Check for it. |
| 275 |
flag64=`$CC -flags | egrep -- '^-m64'` |
| 276 |
if test x"$flag64" != x"" ; then |
| 277 |
CFLAGS="${CFLAGS} -m64" |
| 278 |
SFLAGS="${SFLAGS} -m64" |
| 279 |
else |
| 280 |
case `(uname -m || echo unknown) 2>/dev/null` in |
| 281 |
i86*) |
| 282 |
SFLAGS="$SFLAGS -xarch=amd64" |
| 283 |
CFLAGS="$CFLAGS -xarch=amd64" ;; |
| 284 |
*) |
| 285 |
SFLAGS="$SFLAGS -xarch=v9" |
| 286 |
CFLAGS="$CFLAGS -xarch=v9" ;; |
| 287 |
esac |
| 288 |
fi |
| 289 |
fi |
| 290 |
;; |
| 291 |
SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} |
| 292 |
CFLAGS=${CFLAGS-"-O2"} |
| 293 |
LDSHARED=${LDSHARED-"ld"} ;; |
| 294 |
SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} |
| 295 |
CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} |
| 296 |
LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; |
| 297 |
UNIX_System_V\ 4.2.0) |
| 298 |
SFLAGS=${CFLAGS-"-KPIC -O"} |
| 299 |
CFLAGS=${CFLAGS-"-O"} |
| 300 |
LDSHARED=${LDSHARED-"cc -G"} ;; |
| 301 |
UNIX_SV\ 4.2MP) |
| 302 |
SFLAGS=${CFLAGS-"-Kconform_pic -O"} |
| 303 |
CFLAGS=${CFLAGS-"-O"} |
| 304 |
LDSHARED=${LDSHARED-"cc -G"} ;; |
| 305 |
OpenUNIX\ 5) |
| 306 |
SFLAGS=${CFLAGS-"-KPIC -O"} |
| 307 |
CFLAGS=${CFLAGS-"-O"} |
| 308 |
LDSHARED=${LDSHARED-"cc -G"} ;; |
| 309 |
AIX*) # Courtesy of dbakker@arrayasolutions.com |
| 310 |
SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
| 311 |
CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
| 312 |
LDSHARED=${LDSHARED-"xlc -G"} ;; |
| 313 |
# send working options for other systems to zlib@gzip.org |
| 314 |
*) SFLAGS=${CFLAGS-"-O"} |
| 315 |
CFLAGS=${CFLAGS-"-O"} |
| 316 |
LDSHARED=${LDSHARED-"cc -shared"} ;; |
| 317 |
esac |
| 318 |
fi |
| 319 |
|
| 320 |
# destination names for shared library if not defined above |
| 321 |
SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} |
| 322 |
SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} |
| 323 |
SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} |
| 324 |
|
| 325 |
echo >> configure.log |
| 326 |
|
| 327 |
# define functions for testing compiler and library characteristics and logging the results |
| 328 |
|
| 329 |
cat > $test.c <<EOF |
| 330 |
#error error |
| 331 |
EOF |
| 332 |
if ($CC -c $CFLAGS $test.c) 2>/dev/null; then |
| 333 |
try() |
| 334 |
{ |
| 335 |
show $* |
| 336 |
test "`( $* ) 2>&1 | tee -a configure.log`" = "" |
| 337 |
} |
| 338 |
echo - using any output from compiler to indicate an error >> configure.log |
| 339 |
else |
| 340 |
try() |
| 341 |
{ |
| 342 |
show $* |
| 343 |
( $* ) >> configure.log 2>&1 |
| 344 |
ret=$? |
| 345 |
if test $ret -ne 0; then |
| 346 |
echo "(exit code "$ret")" >> configure.log |
| 347 |
fi |
| 348 |
return $ret |
| 349 |
} |
| 350 |
fi |
| 351 |
|
| 352 |
tryboth() |
| 353 |
{ |
| 354 |
show $* |
| 355 |
got=`( $* ) 2>&1` |
| 356 |
ret=$? |
| 357 |
printf %s "$got" >> configure.log |
| 358 |
if test $ret -ne 0; then |
| 359 |
return $ret |
| 360 |
fi |
| 361 |
test "$got" = "" |
| 362 |
} |
| 363 |
|
| 364 |
cat > $test.c << EOF |
| 365 |
int foo() { return 0; } |
| 366 |
EOF |
| 367 |
echo "Checking for obsessive-compulsive compiler options..." >> configure.log |
| 368 |
if try $CC -c $CFLAGS $test.c; then |
| 369 |
: |
| 370 |
else |
| 371 |
echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log |
| 372 |
leave 1 |
| 373 |
fi |
| 374 |
|
| 375 |
echo >> configure.log |
| 376 |
|
| 377 |
# see if shared library build supported |
| 378 |
cat > $test.c <<EOF |
| 379 |
extern int getchar(); |
| 380 |
int hello() {return getchar();} |
| 381 |
EOF |
| 382 |
if test $shared -eq 1; then |
| 383 |
echo Checking for shared library support... | tee -a configure.log |
| 384 |
# we must test in two steps (cc then ld), required at least on SunOS 4.x |
| 385 |
if try $CC -w -c $SFLAGS $test.c && |
| 386 |
try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then |
| 387 |
echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log |
| 388 |
elif test -z "$old_cc" -a -z "$old_cflags"; then |
| 389 |
echo No shared library support. | tee -a configure.log |
| 390 |
shared=0; |
| 391 |
else |
| 392 |
echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log |
| 393 |
shared=0; |
| 394 |
fi |
| 395 |
fi |
| 396 |
if test $shared -eq 0; then |
| 397 |
LDSHARED="$CC" |
| 398 |
ALL="static" |
| 399 |
TEST="all teststatic" |
| 400 |
SHAREDLIB="" |
| 401 |
SHAREDLIBV="" |
| 402 |
SHAREDLIBM="" |
| 403 |
echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log |
| 404 |
else |
| 405 |
ALL="static shared" |
| 406 |
TEST="all teststatic testshared" |
| 407 |
fi |
| 408 |
|
| 409 |
# check for underscores in external names for use by assembler code |
| 410 |
CPP=${CPP-"$CC -E"} |
| 411 |
case $CFLAGS in |
| 412 |
*ASMV*) |
| 413 |
echo >> configure.log |
| 414 |
show "$NM $test.o | grep _hello" |
| 415 |
if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then |
| 416 |
CPP="$CPP -DNO_UNDERLINE" |
| 417 |
echo Checking for underline in external names... No. | tee -a configure.log |
| 418 |
else |
| 419 |
echo Checking for underline in external names... Yes. | tee -a configure.log |
| 420 |
fi ;; |
| 421 |
esac |
| 422 |
|
| 423 |
echo >> configure.log |
| 424 |
|
| 425 |
# check for large file support, and if none, check for fseeko() |
| 426 |
cat > $test.c <<EOF |
| 427 |
#include <sys/types.h> |
| 428 |
off64_t dummy = 0; |
| 429 |
EOF |
| 430 |
if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then |
| 431 |
CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" |
| 432 |
SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" |
| 433 |
ALL="${ALL} all64" |
| 434 |
TEST="${TEST} test64" |
| 435 |
echo "Checking for off64_t... Yes." | tee -a configure.log |
| 436 |
echo "Checking for fseeko... Yes." | tee -a configure.log |
| 437 |
else |
| 438 |
echo "Checking for off64_t... No." | tee -a configure.log |
| 439 |
echo >> configure.log |
| 440 |
cat > $test.c <<EOF |
| 441 |
#include <stdio.h> |
| 442 |
int main(void) { |
| 443 |
fseeko(NULL, 0, 0); |
| 444 |
return 0; |
| 445 |
} |
| 446 |
EOF |
| 447 |
if try $CC $CFLAGS -o $test $test.c; then |
| 448 |
echo "Checking for fseeko... Yes." | tee -a configure.log |
| 449 |
else |
| 450 |
CFLAGS="${CFLAGS} -DNO_FSEEKO" |
| 451 |
SFLAGS="${SFLAGS} -DNO_FSEEKO" |
| 452 |
echo "Checking for fseeko... No." | tee -a configure.log |
| 453 |
fi |
| 454 |
fi |
| 455 |
|
| 456 |
echo >> configure.log |
| 457 |
|
| 458 |
# check for strerror() for use by gz* functions |
| 459 |
cat > $test.c <<EOF |
| 460 |
#include <string.h> |
| 461 |
#include <errno.h> |
| 462 |
int main() { return strlen(strerror(errno)); } |
| 463 |
EOF |
| 464 |
if try $CC $CFLAGS -o $test $test.c; then |
| 465 |
echo "Checking for strerror... Yes." | tee -a configure.log |
| 466 |
else |
| 467 |
CFLAGS="${CFLAGS} -DNO_STRERROR" |
| 468 |
SFLAGS="${SFLAGS} -DNO_STRERROR" |
| 469 |
echo "Checking for strerror... No." | tee -a configure.log |
| 470 |
fi |
| 471 |
|
| 472 |
# copy clean zconf.h for subsequent edits |
| 473 |
cp -p zconf.h.in zconf.h |
| 474 |
|
| 475 |
echo >> configure.log |
| 476 |
|
| 477 |
# check for unistd.h and save result in zconf.h |
| 478 |
cat > $test.c <<EOF |
| 479 |
#include <unistd.h> |
| 480 |
int main() { return 0; } |
| 481 |
EOF |
| 482 |
if try $CC -c $CFLAGS $test.c; then |
| 483 |
sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
| 484 |
mv zconf.temp.h zconf.h |
| 485 |
echo "Checking for unistd.h... Yes." | tee -a configure.log |
| 486 |
else |
| 487 |
echo "Checking for unistd.h... No." | tee -a configure.log |
| 488 |
fi |
| 489 |
|
| 490 |
echo >> configure.log |
| 491 |
|
| 492 |
# check for stdarg.h and save result in zconf.h |
| 493 |
cat > $test.c <<EOF |
| 494 |
#include <stdarg.h> |
| 495 |
int main() { return 0; } |
| 496 |
EOF |
| 497 |
if try $CC -c $CFLAGS $test.c; then |
| 498 |
sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
| 499 |
mv zconf.temp.h zconf.h |
| 500 |
echo "Checking for stdarg.h... Yes." | tee -a configure.log |
| 501 |
else |
| 502 |
echo "Checking for stdarg.h... No." | tee -a configure.log |
| 503 |
fi |
| 504 |
|
| 505 |
# if the z_ prefix was requested, save that in zconf.h |
| 506 |
if test $zprefix -eq 1; then |
| 507 |
sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h |
| 508 |
mv zconf.temp.h zconf.h |
| 509 |
echo >> configure.log |
| 510 |
echo "Using z_ prefix on all symbols." | tee -a configure.log |
| 511 |
fi |
| 512 |
|
| 513 |
# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists |
| 514 |
if test $solo -eq 1; then |
| 515 |
sed '/#define ZCONF_H/a\ |
| 516 |
#define Z_SOLO |
| 517 |
|
| 518 |
' < zconf.h > zconf.temp.h |
| 519 |
mv zconf.temp.h zconf.h |
| 520 |
OBJC='$(OBJZ)' |
| 521 |
PIC_OBJC='$(PIC_OBJZ)' |
| 522 |
fi |
| 523 |
|
| 524 |
# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X |
| 525 |
if test $cover -eq 1; then |
| 526 |
CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage" |
| 527 |
if test -n "$GCC_CLASSIC"; then |
| 528 |
CC=$GCC_CLASSIC |
| 529 |
fi |
| 530 |
fi |
| 531 |
|
| 532 |
echo >> configure.log |
| 533 |
|
| 534 |
# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions |
| 535 |
# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a |
| 536 |
# return value. The most secure result is vsnprintf() with a return value. snprintf() with a |
| 537 |
# return value is secure as well, but then gzprintf() will be limited to 20 arguments. |
| 538 |
cat > $test.c <<EOF |
| 539 |
#include <stdio.h> |
| 540 |
#include <stdarg.h> |
| 541 |
#include "zconf.h" |
| 542 |
int main() |
| 543 |
{ |
| 544 |
#ifndef STDC |
| 545 |
choke me |
| 546 |
#endif |
| 547 |
return 0; |
| 548 |
} |
| 549 |
EOF |
| 550 |
if try $CC -c $CFLAGS $test.c; then |
| 551 |
echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log |
| 552 |
|
| 553 |
echo >> configure.log |
| 554 |
cat > $test.c <<EOF |
| 555 |
#include <stdio.h> |
| 556 |
#include <stdarg.h> |
| 557 |
int mytest(const char *fmt, ...) |
| 558 |
{ |
| 559 |
char buf[20]; |
| 560 |
va_list ap; |
| 561 |
va_start(ap, fmt); |
| 562 |
vsnprintf(buf, sizeof(buf), fmt, ap); |
| 563 |
va_end(ap); |
| 564 |
return 0; |
| 565 |
} |
| 566 |
int main() |
| 567 |
{ |
| 568 |
return (mytest("Hello%d\n", 1)); |
| 569 |
} |
| 570 |
EOF |
| 571 |
if try $CC $CFLAGS -o $test $test.c; then |
| 572 |
echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log |
| 573 |
|
| 574 |
echo >> configure.log |
| 575 |
cat >$test.c <<EOF |
| 576 |
#include <stdio.h> |
| 577 |
#include <stdarg.h> |
| 578 |
int mytest(const char *fmt, ...) |
| 579 |
{ |
| 580 |
int n; |
| 581 |
char buf[20]; |
| 582 |
va_list ap; |
| 583 |
va_start(ap, fmt); |
| 584 |
n = vsnprintf(buf, sizeof(buf), fmt, ap); |
| 585 |
va_end(ap); |
| 586 |
return n; |
| 587 |
} |
| 588 |
int main() |
| 589 |
{ |
| 590 |
return (mytest("Hello%d\n", 1)); |
| 591 |
} |
| 592 |
EOF |
| 593 |
|
| 594 |
if try $CC -c $CFLAGS $test.c; then |
| 595 |
echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log |
| 596 |
else |
| 597 |
CFLAGS="$CFLAGS -DHAS_vsnprintf_void" |
| 598 |
SFLAGS="$SFLAGS -DHAS_vsnprintf_void" |
| 599 |
echo "Checking for return value of vsnprintf()... No." | tee -a configure.log |
| 600 |
echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log |
| 601 |
echo " can build but will be open to possible string-format security" | tee -a configure.log |
| 602 |
echo " vulnerabilities." | tee -a configure.log |
| 603 |
fi |
| 604 |
else |
| 605 |
CFLAGS="$CFLAGS -DNO_vsnprintf" |
| 606 |
SFLAGS="$SFLAGS -DNO_vsnprintf" |
| 607 |
echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log |
| 608 |
echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log |
| 609 |
echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
| 610 |
echo " vulnerabilities." | tee -a configure.log |
| 611 |
|
| 612 |
echo >> configure.log |
| 613 |
cat >$test.c <<EOF |
| 614 |
#include <stdio.h> |
| 615 |
#include <stdarg.h> |
| 616 |
int mytest(const char *fmt, ...) |
| 617 |
{ |
| 618 |
int n; |
| 619 |
char buf[20]; |
| 620 |
va_list ap; |
| 621 |
va_start(ap, fmt); |
| 622 |
n = vsprintf(buf, fmt, ap); |
| 623 |
va_end(ap); |
| 624 |
return n; |
| 625 |
} |
| 626 |
int main() |
| 627 |
{ |
| 628 |
return (mytest("Hello%d\n", 1)); |
| 629 |
} |
| 630 |
EOF |
| 631 |
|
| 632 |
if try $CC -c $CFLAGS $test.c; then |
| 633 |
echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log |
| 634 |
else |
| 635 |
CFLAGS="$CFLAGS -DHAS_vsprintf_void" |
| 636 |
SFLAGS="$SFLAGS -DHAS_vsprintf_void" |
| 637 |
echo "Checking for return value of vsprintf()... No." | tee -a configure.log |
| 638 |
echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log |
| 639 |
echo " can build but will be open to possible string-format security" | tee -a configure.log |
| 640 |
echo " vulnerabilities." | tee -a configure.log |
| 641 |
fi |
| 642 |
fi |
| 643 |
else |
| 644 |
echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log |
| 645 |
|
| 646 |
echo >> configure.log |
| 647 |
cat >$test.c <<EOF |
| 648 |
#include <stdio.h> |
| 649 |
int mytest() |
| 650 |
{ |
| 651 |
char buf[20]; |
| 652 |
snprintf(buf, sizeof(buf), "%s", "foo"); |
| 653 |
return 0; |
| 654 |
} |
| 655 |
int main() |
| 656 |
{ |
| 657 |
return (mytest()); |
| 658 |
} |
| 659 |
EOF |
| 660 |
|
| 661 |
if try $CC $CFLAGS -o $test $test.c; then |
| 662 |
echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log |
| 663 |
|
| 664 |
echo >> configure.log |
| 665 |
cat >$test.c <<EOF |
| 666 |
#include <stdio.h> |
| 667 |
int mytest() |
| 668 |
{ |
| 669 |
char buf[20]; |
| 670 |
return snprintf(buf, sizeof(buf), "%s", "foo"); |
| 671 |
} |
| 672 |
int main() |
| 673 |
{ |
| 674 |
return (mytest()); |
| 675 |
} |
| 676 |
EOF |
| 677 |
|
| 678 |
if try $CC -c $CFLAGS $test.c; then |
| 679 |
echo "Checking for return value of snprintf()... Yes." | tee -a configure.log |
| 680 |
else |
| 681 |
CFLAGS="$CFLAGS -DHAS_snprintf_void" |
| 682 |
SFLAGS="$SFLAGS -DHAS_snprintf_void" |
| 683 |
echo "Checking for return value of snprintf()... No." | tee -a configure.log |
| 684 |
echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log |
| 685 |
echo " can build but will be open to possible string-format security" | tee -a configure.log |
| 686 |
echo " vulnerabilities." | tee -a configure.log |
| 687 |
fi |
| 688 |
else |
| 689 |
CFLAGS="$CFLAGS -DNO_snprintf" |
| 690 |
SFLAGS="$SFLAGS -DNO_snprintf" |
| 691 |
echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log |
| 692 |
echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log |
| 693 |
echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
| 694 |
echo " vulnerabilities." | tee -a configure.log |
| 695 |
|
| 696 |
echo >> configure.log |
| 697 |
cat >$test.c <<EOF |
| 698 |
#include <stdio.h> |
| 699 |
int mytest() |
| 700 |
{ |
| 701 |
char buf[20]; |
| 702 |
return sprintf(buf, "%s", "foo"); |
| 703 |
} |
| 704 |
int main() |
| 705 |
{ |
| 706 |
return (mytest()); |
| 707 |
} |
| 708 |
EOF |
| 709 |
|
| 710 |
if try $CC -c $CFLAGS $test.c; then |
| 711 |
echo "Checking for return value of sprintf()... Yes." | tee -a configure.log |
| 712 |
else |
| 713 |
CFLAGS="$CFLAGS -DHAS_sprintf_void" |
| 714 |
SFLAGS="$SFLAGS -DHAS_sprintf_void" |
| 715 |
echo "Checking for return value of sprintf()... No." | tee -a configure.log |
| 716 |
echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log |
| 717 |
echo " can build but will be open to possible string-format security" | tee -a configure.log |
| 718 |
echo " vulnerabilities." | tee -a configure.log |
| 719 |
fi |
| 720 |
fi |
| 721 |
fi |
| 722 |
|
| 723 |
# see if we can hide zlib internal symbols that are linked between separate source files |
| 724 |
if test "$gcc" -eq 1; then |
| 725 |
echo >> configure.log |
| 726 |
cat > $test.c <<EOF |
| 727 |
#define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) |
| 728 |
int ZLIB_INTERNAL foo; |
| 729 |
int main() |
| 730 |
{ |
| 731 |
return 0; |
| 732 |
} |
| 733 |
EOF |
| 734 |
if tryboth $CC -c $CFLAGS $test.c; then |
| 735 |
CFLAGS="$CFLAGS -DHAVE_HIDDEN" |
| 736 |
SFLAGS="$SFLAGS -DHAVE_HIDDEN" |
| 737 |
echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log |
| 738 |
else |
| 739 |
echo "Checking for attribute(visibility) support... No." | tee -a configure.log |
| 740 |
fi |
| 741 |
fi |
| 742 |
|
| 743 |
# show the results in the log |
| 744 |
echo >> configure.log |
| 745 |
echo ALL = $ALL >> configure.log |
| 746 |
echo AR = $AR >> configure.log |
| 747 |
echo ARFLAGS = $ARFLAGS >> configure.log |
| 748 |
echo CC = $CC >> configure.log |
| 749 |
echo CFLAGS = $CFLAGS >> configure.log |
| 750 |
echo CPP = $CPP >> configure.log |
| 751 |
echo EXE = $EXE >> configure.log |
| 752 |
echo LDCONFIG = $LDCONFIG >> configure.log |
| 753 |
echo LDFLAGS = $LDFLAGS >> configure.log |
| 754 |
echo LDSHARED = $LDSHARED >> configure.log |
| 755 |
echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log |
| 756 |
echo OBJC = $OBJC >> configure.log |
| 757 |
echo PIC_OBJC = $PIC_OBJC >> configure.log |
| 758 |
echo RANLIB = $RANLIB >> configure.log |
| 759 |
echo SFLAGS = $SFLAGS >> configure.log |
| 760 |
echo SHAREDLIB = $SHAREDLIB >> configure.log |
| 761 |
echo SHAREDLIBM = $SHAREDLIBM >> configure.log |
| 762 |
echo SHAREDLIBV = $SHAREDLIBV >> configure.log |
| 763 |
echo STATICLIB = $STATICLIB >> configure.log |
| 764 |
echo TEST = $TEST >> configure.log |
| 765 |
echo VER = $VER >> configure.log |
| 766 |
echo Z_U4 = $Z_U4 >> configure.log |
| 767 |
echo exec_prefix = $exec_prefix >> configure.log |
| 768 |
echo includedir = $includedir >> configure.log |
| 769 |
echo libdir = $libdir >> configure.log |
| 770 |
echo mandir = $mandir >> configure.log |
| 771 |
echo prefix = $prefix >> configure.log |
| 772 |
echo sharedlibdir = $sharedlibdir >> configure.log |
| 773 |
echo uname = $uname >> configure.log |
| 774 |
|
| 775 |
# udpate Makefile with the configure results |
| 776 |
sed < Makefile.in " |
| 777 |
/^CC *=/s#=.*#=$CC# |
| 778 |
/^CFLAGS *=/s#=.*#=$CFLAGS# |
| 779 |
/^SFLAGS *=/s#=.*#=$SFLAGS# |
| 780 |
/^LDFLAGS *=/s#=.*#=$LDFLAGS# |
| 781 |
/^LDSHARED *=/s#=.*#=$LDSHARED# |
| 782 |
/^CPP *=/s#=.*#=$CPP# |
| 783 |
/^STATICLIB *=/s#=.*#=$STATICLIB# |
| 784 |
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
| 785 |
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
| 786 |
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
| 787 |
/^AR *=/s#=.*#=$AR# |
| 788 |
/^ARFLAGS *=/s#=.*#=$ARFLAGS# |
| 789 |
/^RANLIB *=/s#=.*#=$RANLIB# |
| 790 |
/^LDCONFIG *=/s#=.*#=$LDCONFIG# |
| 791 |
/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# |
| 792 |
/^EXE *=/s#=.*#=$EXE# |
| 793 |
/^prefix *=/s#=.*#=$prefix# |
| 794 |
/^exec_prefix *=/s#=.*#=$exec_prefix# |
| 795 |
/^libdir *=/s#=.*#=$libdir# |
| 796 |
/^sharedlibdir *=/s#=.*#=$sharedlibdir# |
| 797 |
/^includedir *=/s#=.*#=$includedir# |
| 798 |
/^mandir *=/s#=.*#=$mandir# |
| 799 |
/^OBJC *=/s#=.*#= $OBJC# |
| 800 |
/^PIC_OBJC *=/s#=.*#= $PIC_OBJC# |
| 801 |
/^all: */s#:.*#: $ALL# |
| 802 |
/^test: */s#:.*#: $TEST# |
| 803 |
" > Makefile |
| 804 |
|
| 805 |
# create zlib.pc with the configure results |
| 806 |
sed < zlib.pc.in " |
| 807 |
/^CC *=/s#=.*#=$CC# |
| 808 |
/^CFLAGS *=/s#=.*#=$CFLAGS# |
| 809 |
/^CPP *=/s#=.*#=$CPP# |
| 810 |
/^LDSHARED *=/s#=.*#=$LDSHARED# |
| 811 |
/^STATICLIB *=/s#=.*#=$STATICLIB# |
| 812 |
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
| 813 |
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
| 814 |
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
| 815 |
/^AR *=/s#=.*#=$AR# |
| 816 |
/^ARFLAGS *=/s#=.*#=$ARFLAGS# |
| 817 |
/^RANLIB *=/s#=.*#=$RANLIB# |
| 818 |
/^EXE *=/s#=.*#=$EXE# |
| 819 |
/^prefix *=/s#=.*#=$prefix# |
| 820 |
/^exec_prefix *=/s#=.*#=$exec_prefix# |
| 821 |
/^libdir *=/s#=.*#=$libdir# |
| 822 |
/^sharedlibdir *=/s#=.*#=$sharedlibdir# |
| 823 |
/^includedir *=/s#=.*#=$includedir# |
| 824 |
/^mandir *=/s#=.*#=$mandir# |
| 825 |
/^LDFLAGS *=/s#=.*#=$LDFLAGS# |
| 826 |
" | sed -e " |
| 827 |
s/\@VERSION\@/$VER/g; |
| 828 |
" > zlib.pc |
| 829 |
|
| 830 |
# done |
| 831 |
leave 0 |
